diff --git a/tests/tests.cpp b/tests/tests.cpp
index ac79ab32..e6c1b25e 100644
--- a/tests/tests.cpp
+++ b/tests/tests.cpp
@@ -326,6 +326,8 @@ void
 test_mknod_ff()
 {
   Func2::MknodFF mknod;
+  Branches branches;
+
 }
 
 TEST_LIST =